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arXiv 0905.4941math.CTmath.AT
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半阿贝尔范畴的“工作数学家”定义

A "working mathematician's" definition of semi-abelian categories

Manfred Hartl, Bruno Loiseau

摘要:

半阿贝尔同调范畴和余余完全同调范畴分别用四个特征刻划。三个简单的公理,根据麦克莱恩的经典著作的前几章中介绍的基本范畴概念。作为直接的应用,我们证明了半阿贝尔范畴和相似范畴中的图的范畴是同一类型的;特别地,半阿贝尔范畴中的单纯或Γ-对象的范畴是半阿贝尔的。

英文摘要:

Semi-abelian and finitely cocomplete homological categories are characterized in terms of four resp. three simple axioms, in terms of the basic categorical notions introduced in the first few chapters of MacLane's classical book. As an immediate application we show that categories of diagrams in semi-abelian and similar categories are of the same type; in particular, the category of simplicial or Γ-objects in a semi-abelian category is semi-abelian.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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